Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
Invision - Prototyping and collaboration for design teams
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .
Sketch - Professional digital design for Mac.